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Home > Solutions > Oscillation > Gyratory Systems

Mainly used by processing sections of grain and flour production, pharmaceutical powder preparation and the chipboard industry, gyratory sifters offer a very high throughput and pass their load through a series of screens which filter, remove and collect specific elements chosen by design. These machines can be bolted to either the floor (upright, standing) or the ceiling (hanging, suspended).

Suspended sifters, used almost exclusively for sifting flour in the milling industry are, by design, hung from a building roof and therefore transmit the residual shocks of the unbalanced shaft which drives them, into the building itself. Rubber damping units must be carefully engineered at all points with suspended units due to the considerable weight and continual movement of the unit itself. Rubber suspension units can effectively protect the building itself, as well as the mechanical components of the suspended sifter by damping out harsh vibrations. Due to the particulate nature of the material being transported and the environment in which the machinery operates, we recommend using rubber dampers with a full-fill construction and a sealed shell, effectively eliminating the possibility of foreign matter ingress and unnecessary wear of the rubber within.

Standing sifters operate using a classic, circular, crank drive which uses a belt driven eccentric shaft to power the unit. The unit itself is supported by four legs, each of which bear equal load and thus guide the units’ movement – they are anchored to the floor of the facility in which the unit resides. Rubber damper units are fitted to each of these four legs at both floor and unit level. Together, these units can effectively dampen out harsh residual vibrations, protecting both the machine components and building foundations. Due to the particulate nature of the material being transported and the environment in which the machinery operates, we recommend rubber suspension units are provided with a full-fill construction and a sealed shell, effectively eliminating the possibility of foreign matter ingress and unnecessary wear of the rubber within.

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